Hi,
if you connect your mount to the computer and set up SharpCap to talk to the mount via ASCOM (
https://docs.sharpcap.co.uk/2.9/#Mount%20Control) and also have installed a plate solver like AstroTortilla, ANSVR or ASPS, then you get a 'GPS' type button in the mount controls (actually this button is shown in the documentation above, but not discussed). When you press that button, SharpCap will
* capture a frame
* send it to the plate solver to work out exactly where the telescope is pointing
* sync the ASCOM mount to the plate solved position
* send a GOTO command to the ASCOM mount to go back to the original RA/Dec co-ordinates
The effect of this is that if you GOTO an object (say M45) and the mount is a bit off target, once SharpCap has worked through the sequence above the target object should be pretty much centered in the field of view.
hope this helps,
Robin